Mkpụrụ ụbụrụ na cocaine: plasticity na metaplasticity (2015)

Na-egbu Biol. 2015 Sep;20(5):941-55. doi: 10.1111/adb.12223.

Vazquez-Sanroman D1, Leto K2,3, Cerezo-Garcia M4, Carbo-Gas M1, Sanchis-Segura C1, Carulli D2,3, Rossi F2,3, Miquel M1.

nkịtị

Agbanyeghị eziokwu na ọtụtụ data akwadola itinye aka na cerebellum na arụmọrụ ndị a hụrụ ka ejiri ọgwụ cocaine ruo ogologo oge, usoro ọdịnala a elegharala ya anya ma wezuga ya na mkpụrụ ọgwụ mmanya riri ahụ. N'ime ọmụmụ ihe dị ugbu a, anyị nyochara nsonaazụ nke ọgwụgwọ cocaine na-adịghị ala ala na plastik na sistemu na sistem, gụnyere BDNF, D3 dopamine receipor, ΔFosB, ngalaba Glu2 AMPA receptor, mgbanwe nhazi na Purkinje neurons na, n'ikpeazụ, nyocha nke ụgbụ perineuronal (PNNs) n'ihe banyere neurons nke dị na ngagharị mgbasapụta, ngụpụta nke akụkụ ụbụrụ ahụ. N'ime ọnọdụ nnwale ugbu a nke usoro ọgwụgwọ cocaine ugboro ugboro yana oge iwepụ 1-izu na ihe ịma aka cocaine ọhụrụ, nsonaazụ anyị gosipụtara na cocaine butere nnukwu mmụba na ọkwa PRPDNF nke cerebellar na ngosipụta ya na Purkinje neurons, ya na ngosipụta BDNF tozuru okè anaghị agbanwe agbanwe.

Na nke a, ụmụ oke ejiri ọgwụ cocaine gosipụtara nkwalite dị ukwuu nke ọkwa nnabata D3. Abụọ ΔFosB na AMPA nnabata Glu2 ngosipụta agbakwunyere na ụmụ anụmanụ ejiri ọgwụ cocaine. Mpempe ọka dị mkpa na Purkinje dendrite arborization na mbelata nha na njupụta nke Purkinje boutons na-akpọtụrụ akụkụ mkpụrụ ndụ dị omimi dị na proBDNF. Mmetụta cocaine na-arụtụ aka na nrụrụ ọrụ Purkinje inhibitory dị ka arụrụ aka gosipụtara site na obere ọrụ dị n’ime sel ndị a.

Ọzọkwa, enwere ike belata ihe mgbazigharị ọ bụla na Purkinje synapses n'ihi nkwalite nke ihe ndị ọzọ dị na mwepu PNN na gburugburu akwara ọgwụ nuklia.

AKWỤKWỌ: BDNF; cerebellum; koko; ụmụ oke; mmetụta uche; FosB